Hi God Bless USA
I'll go another round on this since you made some changes
1. Bombing
2. Fighter
3. For support of ground forces
4. Interceptor
5. Patrol
Your latest picks
1. F-15E Payload
2. F-15C Its record speaks for itself
3. F-18F The weapon systems officer can deliver laser-guided bombs, to minimize the risk to ground forces. It also has two engines, if ground forces hit one it still has one to continue and return safe from its mission.
4. F-15C Range and if it needs to fight it can
5. F-16C Low cost versatile aircraft
6. As for best multi-role aircraft. A tough one but I have to go with F-16C because for the price you can have more.
1. This why these general type questions are rough to answer sometimes - You never gave any specs on mission type all the aircraft you listed accept the F-15C can carry bombs. Yes the F-15E is the largest aircraft and does carry the larger payload
2. All carry the same air to air missile and the Block-II Hornets have a better radar but in general I would want to be in a F-15C with a ASEA radar. In theory all could be a fighter.
3. All can deliver laser-guided bombs except F-15C and I'm sure F-15E/F/A-18 and F-16 pilots would all say there aircraft is the best at it.
You mention having two engines if ground forces if you mean small arms fire most LGB are dropped higher up to avoid that and if you mean SAM's well I guess if it explodes on one side the other engines won't damage, but that's slim.
4. I agree for an interceptor - range, speed, radar, and payload (how many air to air missiles a platform can carry are important) F-15C with a ASEA radar out of your choices.
5. A F-16 single engine fighter flying at 300 knots decent full load basic air to air load out might be the best choice depending on the situation. The situation may call for heavy long range fighters with lots of tanker supports. The situation or mission task dictates the platform.
6. You never mention a budget so the price issue was never a thought, but the F-16 does cost less then the others you listed.
These type questions can be fun but I think you see how there worded is the key and how you describe the situation. (smile face)